| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be impossible [to-vb] any [noun] | 15 |
|
| 2 | it [be] impossible [to-vb] any [noun] | 15 |
|
| 3 | it [be] impossible [to-vb] any [noun] | 15 |
|
| 4 | it [be] impossible [to-vb] any [noun sg] | 13 |
|
| 5 | it [is] impossible [to-vb] any [noun] | 10 |
|
| 6 | it is impossible [to-vb] any [noun] | 8 |
|
| 7 | it [was/were] impossible [to-vb] any [noun] | 5 |
|
| 8 | it was impossible [to-vb] any [noun] | 5 |
|
